Know Your Environment. Protect Your Health.

Monochloroacetic acid

City of Richland

Monochloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

29

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.20 ppb42ND - 2.80 ppb
20190.600 ppb41ND - 2.40 ppb
20200.750 ppb42ND - 2.00 ppb
2021ND40ND
2022ND40ND
20233.47 ppb992.30 ppb - 4.80 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 53 ppb

The EWG Health Guideline of 53 ppb for monochloroacetic acid was defined by the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk.a public health goal. This health guideline protects against change to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-01Q1804162002ND
2018-04-18Q18159290032.80 ppb
2018-07-18Q1828596003ND
2018-10-26Q18432970022.00 ppb
2019-02-07Q19058090022.40 ppb
2019-04-30Q1917509001ND
2019-09-24Q1968206003ND
2019-11-20Q1977645003ND
2020-02-11Q20054410031.000 ppb
2020-06-18Q2024812003ND
2020-09-24Q20378650032.00 ppb
2020-10-20Q2041062003ND
2021-01-14Q2101050003ND
2021-04-05Q2108456003ND
2021-07-27Q2119608002ND
2021-10-14Q2128818003ND
2022-03-15Q2208888003ND
2022-05-04Q2213445003ND
2022-08-17Q2224343003ND
2022-11-09Q2233875003ND
2023-02-09Q23051920034.80 ppb
2023-02-09Q23051920044.30 ppb
2023-05-02Q23164790032.30 ppb
2023-05-02Q23164790042.30 ppb
2023-08-22Q23354210033.70 ppb
2023-08-22Q23354210044.00 ppb
2023-09-28Q23417820014.30 ppb
2023-11-02Q23470740012.60 ppb
2023-11-02Q23470740022.90 ppb